Empower Your JDM Engine With GSC Power Division Components
Discover the GSC Power Division collection at HD Werks, offering genuine, high-performance components engineered for superior engine and powertrain upgrades. These original parts, designed for racing and aftermarket tuning, deliver custom solutions that optimize power output and dynamic control. Crafted with Japanese innovation, GSC products provide authentic quality and robust performance for both track and street use. Experience the perfect blend of original design and aggressive performance. Shop our GSC Power Division range for original components that transform your vehicleís dynamics.
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-$0.72
Vendor:GSC Power DivisionGSC P-D Mitsubishi 4G63T Manganese Bronze Exhaust Valve Guide Shorty Stopper +.001in OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Mitsubishi 4G63 Manganese Bronze Exhaust Valve Guide Shorty Stopper - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Mitsubishi 4G63 (.003+) Stopper Style Intake (Single)
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Mitsubishi 4G63 (.001+) Stopper Style Intake - (Single)
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Mitsubishi 4G63T Manganese Bronze Intake Valve Guide Stopper Style - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Mitsubishi 4G63T Manganese Bronze Exhaust Valve Guide Stopper Style +.003in OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Mitsubishi 4G63T Manganese Bronze Exhaust Valve Guide Stopper Style +.001in OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Mitsubishi 4G63T Manganese Bronze Exhaust Valve Guide Stopper Style - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Mitsubishi 4G63T Manganese Bronze Intake Valve Guide +.003in Oversize OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Mitsubishi 4G63T Manganese Bronze Intake Valve Guide +.001in Oversize OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Mitsubishi 4G63T Manganese Bronze Intake Valve Guide - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Mitsubishi 4G63T Manganese Bronze Exhaust Valve Guide +.003in Oversize OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D Mitsubishi 4G63T Manganese Bronze Exhaust Valve Guide +.001in Oversize OD - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$0.72
Vendor:GSC Power DivisionGSC P-D 4G63T Evo 4-9 OD .4750in ID .2598in OL 1.950in Exhaust Valve Guide - Single
Regular price $5.99Regular price$6.71-$0.72 Sale price $5.99 -
-$26.05
Vendor:GSC Power DivisionGSC P-D 2015+ Subaru Impreza WRX +1mm (35mm) Intake Valve Set Stainless Alloy 21-4N Chrome Polished
Regular price $152.99Regular price$179.04-$26.05 Sale price $152.99 -
-$3.33
Vendor:GSC Power DivisionGSC P-D Subaru FA20F WRX 2015+ 21-4N Chrome Polished Exhaust Valve 35mm Head +1mm - (1)
Regular price $19.99Regular price$23.32-$3.33 Sale price $19.99 -
-$27.07
Vendor:GSC Power DivisionGSC P-D Subaru FA20F WRX 2015+ 23-8N Chrome Polished Exhaust Valve 30mm Head +1mm - (8)
Regular price $153.99Regular price$181.06-$27.07 Sale price $153.99 -
-$2.59
Vendor:GSC Power DivisionGSC P-D Subaru FA20F WRX 2015+ 23-8N Chrome Polished Exhaust Valve 30mm Head +1mm - (1)
Regular price $20.99Regular price$23.58-$2.59 Sale price $20.99 -
-$26.24
Vendor:GSC Power DivisionGSC P-D 2015+ Subaru WRX FA20F 21-4N Stainless Intake Valve - 34mm Head (STD) - SET 8
Regular price $151.99Regular price$178.23-$26.24 Sale price $151.99 -
-$3.22
Vendor:GSC Power DivisionGSC P-D Subaru FA20F WRX 2015+ 21-4N Chrome Polished Intake Valve 34mm STD Head - SINGLE
Regular price $19.99Regular price$23.21-$3.22 Sale price $19.99 -
-$26.45
Vendor:GSC Power DivisionGSC P-D 2015+ Subaru WRX FA20F Exhaust Valve - 29mm Head (STD) - SET 8
Regular price $152.99Regular price$179.44-$26.45 Sale price $152.99 -
-$3.38
Vendor:GSC Power DivisionGSC P-D Subaru FA20F WRX 2015+ 23-8N Chrome Polished Exhaust Valve 29mm STD Head - SINGLE
Regular price $19.99Regular price$23.37-$3.38 Sale price $19.99 -
-$63.80
Vendor:GSC Power DivisionGSC P-D Nissan VR30DDTT 28.5mm Head STD 97.5mm Long Super Alloy Exhaust Valve - Set of 12
Regular price $366.99Regular price$430.79-$63.80 Sale price $366.99 -
-$5.41
Vendor:GSC Power DivisionGSC P-D Nissan VR30DDTT 28.5mm Head STD 97.5mm Long Super Alloy Exhaust Valve - Single
Regular price $31.99Regular price$37.40-$5.41 Sale price $31.99 -
-$49.34
Vendor:GSC Power DivisionGSC P-D Nissan VR30DDTT 33.3mm Head STD 101.1mm Long Intake Valve - Set of 12
Regular price $283.99Regular price$333.33-$49.34 Sale price $283.99 -
-$3.95
Vendor:GSC Power DivisionGSC P-D Nissan VR30DDTT 33.3mm Head STD 101.1mm Long Intake Valve - Single
Regular price $24.99Regular price$28.94-$3.95 Sale price $24.99 -
-$50.04
Vendor:GSC Power DivisionGSC P-D Nissan VR30DDTT 28.5mm Head STD 97.5mm Long Exhaust Valve - Set of 12
Regular price $288.99Regular price$339.03-$50.04 Sale price $288.99 -
-$3.44
Vendor:GSC Power DivisionGSC P-D Nissan VR30DDTT 28.5mm Head STD 97.5mm Long Exhaust Valve - Single
Regular price $25.99Regular price$29.43-$3.44 Sale price $25.99 -
-$37.87
Vendor:GSC Power DivisionGSC P-D Can-Am Maverick Turbo 26mm Head +1mm OS 85.2mm Long Exhaust Valve - Set of 6
Regular price $215.99Regular price$253.86-$37.87 Sale price $215.99 -
-$6.08
Vendor:GSC Power DivisionGSC P-D Can-Am Maverick Turbo 26mm Head +1mm OS 85.2mm Long Exhaust Valve - Single
Regular price $37.99Regular price$44.07-$6.08 Sale price $37.99 -
-$36.93
Vendor:GSC Power DivisionGSC P-D Can-Am Maverick Turbo 25mm Head STD 85.2mm Long Exhaust Valve - Set of 6
Regular price $213.99Regular price$250.92-$36.93 Sale price $213.99 -
-$5.57
Vendor:GSC Power DivisionGSC P-D Can-Am Maverick Turbo 25mm Head STD 85.2mm Long Exhaust Valve - Single
Regular price $37.99Regular price$43.56-$5.57 Sale price $37.99 -
-$25.78
Vendor:GSC Power DivisionGSC P-D Can-Am Maverick Turbo 30mm Head +1mm OS 84.3mm Long Intake Valve - Set of 6
Regular price $149.99Regular price$175.77-$25.78 Sale price $149.99 -
-$4.53
Vendor:GSC Power DivisionGSC P-D Can-Am Maverick Turbo 30mm Head +1mm OS 84.3mm Long Intake Valve - Single
Regular price $25.99Regular price$30.52-$4.53 Sale price $25.99 -
-$25.82
Vendor:GSC Power DivisionGSC P-D Can-Am Maverick Turbo 29mm Head STD 84.3mm Long Intake Valve - Set of 6
Regular price $147.99Regular price$173.81-$25.82 Sale price $147.99
